Booking flights and hotels online have become the norm for many leisure travelers, but Forrester Research reports in a New York Times article today that online booking is increasingly becoming commonplace practice for business travelers. According to Forrester, business trip bookings accounted for $13 billion of the roughly $150 billion companies spent last year on travel, and the research firm expects that figure to double by 2007.

Why the boost? Businesses are beginning to wake up to the fact that booking online saves money, and many of the largest travel sites can generate detailed travel reports, as Inc. writer Nadine Heintz notes in a July 2003 article, helping businesses better manage the business travel process.